title: Primary surgical treatment of nasolacrimal duct obstruction in children younger than 4 years of age.
authors.forename: Burton J
authors.initials: BJ
authors.lastname: Kushner
mesh_terms: D002404:Catheterization / Q000592:standards*; D002675:Child, Preschool; D004106:Dilatation / Q000379:methods* / Q000592:standards*; D006801:Humans; D007223:Infant; D007440:Intubation / Q000592:standards*; D007767:Lacrimal Duct Obstruction / Q000628:therapy*; D009301:Nasolacrimal Duct